Move blink scheduler implementation into a component

components/scheduler/child/task_queue_manager.h

Index: components/scheduler/child/task_queue_manager.h
diff --git a/content/child/scheduler/task_queue_manager.h b/components/scheduler/child/task_queue_manager.h
similarity index 96%
rename from content/child/scheduler/task_queue_manager.h
rename to components/scheduler/child/task_queue_manager.h
index 48588194cbe63c008a99f4834182c7fdce5e2fcc..dad1573e5eb02e0b8953e4baeb754842160332df 100644
--- a/content/child/scheduler/task_queue_manager.h
+++ b/components/scheduler/child/task_queue_manager.h
@@ -14,9 +14,9 @@
 #include "base/single_thread_task_runner.h"
 #include "base/synchronization/lock.h"
 #include "base/threading/thread_checker.h"
-#include "content/child/scheduler/task_queue_selector.h"
-#include "content/child/scheduler/time_source.h"
-#include "content/common/content_export.h"
+#include "components/scheduler/child/task_queue_selector.h"
+#include "components/scheduler/child/time_source.h"
+#include "components/scheduler/scheduler_export.h"
 
 namespace base {
 namespace trace_event {
@@ -25,7 +25,7 @@ class TracedValue;
 }
 }
 
-namespace content {
+namespace scheduler {
 namespace internal {
 class LazyNow;
 class TaskQueue;
@@ -46,8 +46,7 @@ class TimeSource;
 //    the incoming task queue (if any) are moved here. The work queues are
 //    registered with the selector as input to the scheduling decision.
 //
-class CONTENT_EXPORT TaskQueueManager
-    : public TaskQueueSelector::Observer {
+class SCHEDULER_EXPORT TaskQueueManager : public TaskQueueSelector::Observer {
  public:
   // Keep TaskQueue::PumpPolicyToString in sync with this enum.
   enum class PumpPolicy {
@@ -221,6 +220,6 @@ class CONTENT_EXPORT TaskQueueManager
   DISALLOW_COPY_AND_ASSIGN(TaskQueueManager);
 };
 
-}  // namespace content
+}  // namespace scheduler
 
 #endif  // CONTENT_RENDERER_SCHEDULER_TASK_QUEUE_MANAGER_H_